232,000: Number of bison in the United States residing on private ranches according to the 2002 USDA census.
4,000: Number of private U.S. ranches and farms raising bison.
250,000: Approximate bison herd size in Canada.
20,000: Approximate number of bison roaming on public lands in the U.S. and Canada.
500,000: Estimated herd size in North America today.
70 Million: Estimated North American herd size prior to 1600.
1,000: Estimated number of bison left at the turn of the 20th century before efforts were made to preserve and restore the species.
30,000: Number of bison slaughtered under federal inspection in 2004. This number is more than double the figure from 2000.
270-285: gestation period for bison cow.
40-50 pounds: approximate weight of a new born calf.
20 years: average reproductive life span of bison cow.
18-30 months: age of a mature meat animal.
2.42: grams of fat in a 100 gram serving of cooked bison.
10.15: grams of fat in a 100 gram serving of cooked beef.
10.97: grams of fat in a 100 gram serving of salmon.